Growing vegetables in containers is possible but there are some that grow easily and produce heavily in containers. Due to this we've added 20 Best and Most Productive Vegetables to grow in pots. From Balcony Garden Web

Why couldn't you do this out of PVC pipe and shower curtains with rings? adjustable canopy, DIY with shower curtain rings, grommets, canvas, PVC sprinkler pipes set over stakes.

Amazing Bike Lawn Mowers, article by Warren McLaren on Treehugger. Too funny. I believe that when I saw one of these in some old friends yard ( you know who you are), it was called, A Redneck Lawnmower.